Sorry one question I should have asked:
If I were to go with the original wheels mentioned, run spacers (+35) and go with 285 on the back and 265 on the front - would there be any benefit or negative to do doing this compared to running 285 and 265 on 10.5 (+20) & 9.5 (+22) ? I'm assuming the offset won't matter with spacers but really trying to see if the 10.5" width would benefit me granted both scenarios would have 285s on the rear.
2014 M5 Competition Alpine/Sakhir
BMS Tune. Undercover Performance Custom Downpipes & Connector. H&R 10mm Spacers. BMW CF Rear Spoiler. IND Cosmetics. ALP & BEL Radar & Laser.
2011 Space Grey E92 M3 AA Gen 2 Lvl 3 586whp 398wtq SAE (sold)